HUP0204070A2 - Contour correction device - Google Patents

Contour correction device

Info

Publication number
HUP0204070A2
HUP0204070A2 HU0204070A HUP0204070A HUP0204070A2 HU P0204070 A2 HUP0204070 A2 HU P0204070A2 HU 0204070 A HU0204070 A HU 0204070A HU P0204070 A HUP0204070 A HU P0204070A HU P0204070 A2 HUP0204070 A2 HU P0204070A2
Authority
HU
Hungary
Prior art keywords
input signal
brightness range
correction device
edge strength
image edge
Prior art date
Application number
HU0204070A
Other languages
Hungarian (hu)
Inventor
Shohichi Hamada
Haruki Ishimochi
Original Assignee
Sharp Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sharp Kk filed Critical Sharp Kk
Publication of HUP0204070A2 publication Critical patent/HUP0204070A2/en
Publication of HUP0204070A3 publication Critical patent/HUP0204070A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
    • H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Image Processing (AREA)
  • Studio Circuits (AREA)

Abstract

A bemenő képjelnek a függőleges vagy vízszintes irányban végrehajtottszűrése megzavarhatja a ferde irányok eloszlását, ezért a ferdevonalak szaggatottá válnak. Ennek a roblémának a megoldására, abemenőjel feldolgozásához a következő alkotóelemekhasználhatók:hullámalakjavító eszköz (6), amely a közepes világosság tartományábannagyobb meredekségű javító karakterisztikával rendelkezik, mint a nagya kis világosság tartományában; a világosság tartományban processzoreszközt (7) a hullámalak javítóeszköz (6) által feldolgozott bemenőjeleltéréseinek kinyeréséhez képél erősségét érzékelő eszköz (1) ésprocesszoreszköz (8), a bemenőjel és a képél erősségének eltérésealapján műveletek végrehajtására. ÓFiltering the input image signal in the vertical or horizontal direction can disturb the distribution of oblique directions, so the oblique lines become jagged. To solve this problem, to process the input signal, the following components can be used: waveform correction device (6), which has a correction characteristic with a higher slope in the medium brightness range than in the high-low brightness range; in the brightness range, a processor device (7) for extracting the input signal deviations processed by the waveform correction device (6), an image edge strength detection device (1) and a processor device (8), for performing operations based on the difference between the input signal and the image edge strength. HE

HU0204070A 1999-11-30 2000-11-29 Contour correction device HUP0204070A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP33901599A JP3545979B2 (en) 1999-11-30 1999-11-30 Contour correction device
PCT/JP2000/008428 WO2001041425A1 (en) 1999-11-30 2000-11-29 Contour correction device

Publications (2)

Publication Number Publication Date
HUP0204070A2 true HUP0204070A2 (en) 2003-05-28
HUP0204070A3 HUP0204070A3 (en) 2003-06-30

Family

ID=18323476

Family Applications (1)

Application Number Title Priority Date Filing Date
HU0204070A HUP0204070A3 (en) 1999-11-30 2000-11-29 Contour correction device

Country Status (10)

Country Link
US (1) US6915023B2 (en)
EP (1) EP1237360B1 (en)
JP (1) JP3545979B2 (en)
KR (1) KR100435178B1 (en)
CN (1) CN1168289C (en)
AU (1) AU767050B2 (en)
DE (1) DE60041503D1 (en)
ES (1) ES2317854T3 (en)
HU (1) HUP0204070A3 (en)
WO (1) WO2001041425A1 (en)

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JP4153715B2 (en) * 2002-04-08 2008-09-24 松下電器産業株式会社 Video signal processing apparatus and video signal processing method
JP4044826B2 (en) 2002-07-25 2008-02-06 富士通株式会社 Semiconductor integrated circuit
JP2005109994A (en) * 2003-09-30 2005-04-21 Matsushita Electric Ind Co Ltd Imaging device
JP4325388B2 (en) * 2003-12-12 2009-09-02 ソニー株式会社 Signal processing apparatus, image display apparatus, and signal processing method
WO2006040960A1 (en) * 2004-10-08 2006-04-20 Matsushita Electric Industrial Co., Ltd. Image processing apparatus and image processing program
JP4200381B2 (en) * 2004-12-16 2008-12-24 船井電機株式会社 Video display device and video display method
JP4534756B2 (en) * 2004-12-22 2010-09-01 ソニー株式会社 Image processing apparatus, image processing method, imaging apparatus, program, and recording medium
CN100362850C (en) * 2005-01-17 2008-01-16 深圳创维－Rgb电子有限公司 Method for strengthening edge of TV image
FR2887978B1 (en) * 2005-06-29 2007-10-12 Snecma Moteurs Sa METHOD FOR CONTROLLING THE PROFILE OF THE CONNECTING AREA BETWEEN THE CYLINDRICAL PART AND THE BOTTOM OF A ROLLER FOR A TURBOMACHINE BEARING BEARING
TWI272853B (en) 2005-09-21 2007-02-01 Quanta Comp Inc Image edge enhancement apparatus and method thereof
US8009903B2 (en) * 2006-06-29 2011-08-30 Panasonic Corporation Image processor, image processing method, storage medium, and integrated circuit that can adjust a degree of depth feeling of a displayed high-quality image
KR100786094B1 (en) 2006-08-07 2007-12-21 엘지전자 주식회사 The display device for displaying a screen of enhanced sharpness, and the method for controlling the same
JP4221434B2 (en) * 2006-10-04 2009-02-12 株式会社ナナオ Outline correction method, image processing apparatus, and display apparatus
JP5082549B2 (en) * 2007-03-30 2012-11-28 ソニー株式会社 Video signal processing apparatus and video signal processing method
JP2009104055A (en) * 2007-10-25 2009-05-14 Seiko Epson Corp Driving device and driving method, and electrooptical device and electronic equipment
JP4875647B2 (en) * 2008-03-12 2012-02-15 パナソニック株式会社 Contour correction circuit
KR100989719B1 (en) 2008-12-31 2010-10-26 엠텍비젼 주식회사 Apparatus For Processing Image Signal, Method For Enhancing Edge Of Image Signal Processing Apparatus And Recorded Medium For Perfoming Method Of Enhancing Edge
JP5099275B2 (en) * 2009-03-16 2012-12-19 株式会社ニコン Adaptive overshoot control for sharpening images
JP4994422B2 (en) * 2009-05-13 2012-08-08 リズム時計工業株式会社 Detection system, signal processing method of detection system, and smoke detector
JP2012249079A (en) * 2011-05-27 2012-12-13 Semiconductor Components Industries Llc Contour correction device
KR20140086632A (en) * 2012-12-28 2014-07-08 삼성디스플레이 주식회사 Image processing device and display device having them

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JPH03263977A (en) 1989-11-27 1991-11-25 Hitachi Ltd Television receiver
JPH0442668A (en) 1990-06-08 1992-02-13 Canon Inc Contour correction circuit
KR0133515B1 (en) * 1990-07-21 1998-04-22 구자홍 The vertical horizontal contour compensation system
US5081692A (en) * 1991-04-04 1992-01-14 Eastman Kodak Company Unsharp masking using center weighted local variance for image sharpening and noise suppression
JPH04342375A (en) 1991-05-20 1992-11-27 Seiko Epson Corp Contour correction circuit
JP3411978B2 (en) * 1991-06-24 2003-06-03 キヤノン株式会社 Image signal processing device
JPH0591532A (en) 1991-09-30 1993-04-09 Toshiba Corp Image filter and adaptive type image filter learning method
JPH06326892A (en) 1993-05-17 1994-11-25 Toshiba Corp Vertical detail emphasis circuit
JPH077636A (en) 1993-06-18 1995-01-10 Victor Co Of Japan Ltd Aperture correction circuit
JPH07336717A (en) 1994-06-10 1995-12-22 Kenwood Corp Color contour correction circuit
DE69534929T2 (en) 1994-09-30 2006-11-16 Matsushita Electric Industrial Co., Ltd., Kadoma RECORDING DEVICE
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JP3003561B2 (en) 1995-09-25 2000-01-31 松下電器産業株式会社 Gradation conversion method and circuit, image display method and apparatus, and image signal conversion apparatus
JP3690882B2 (en) * 1996-08-16 2005-08-31 富士写真フイルム株式会社 Image enhancement processing method and apparatus
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JP4019503B2 (en) 1998-06-09 2007-12-12 ソニー株式会社 Video signal processing apparatus and video signal processing method

Also Published As

Publication number Publication date
EP1237360A1 (en) 2002-09-04
KR100435178B1 (en) 2004-06-16
HUP0204070A3 (en) 2003-06-30
EP1237360B1 (en) 2009-01-28
AU767050B2 (en) 2003-10-30
US6915023B2 (en) 2005-07-05
CN1168289C (en) 2004-09-22
DE60041503D1 (en) 2009-03-19
KR20020059819A (en) 2002-07-13
US20020181800A1 (en) 2002-12-05
AU1649001A (en) 2001-06-12
JP2001157085A (en) 2001-06-08
CN1390419A (en) 2003-01-08
ES2317854T3 (en) 2009-05-01
WO2001041425A1 (en) 2001-06-07
JP3545979B2 (en) 2004-07-21
EP1237360A4 (en) 2004-04-14

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Legal Events

Date Code Title Description
FH91 Appointment of a representative

Free format text: FORMER REPRESENTATIVE(S): DR. BOKOR TAMAS, S.B.G. & K. SZABADALMI UEGYVIVOEI IRODA, HU

Representative=s name: DR. KOETELES ZOLTAN SZABADALMI UEGYVIVOE, S.B., HU

FH92 Termination of representative

Representative=s name: DR. BOKOR TAMAS, S.B.G. & K. SZABADALMI UEGYVI, HU

FA9A Lapse of provisional patent protection due to relinquishment or protection considered relinquished